Abstract: The present invention relates to a method for producing a cycloaliphatic diester, to a method for producing a polyestercarbonate using the one cycloaliphatic diester, to the use of a cycloaliphatic diester for producing polyestercarbonates and also to a polyestercarbonate. The method according to the invention is here in particular characterized in that the cycloaliphatic diester is separated by means of distillation from the reaction mixture.

Abstract: A polymer composition may include a polymer produced from ethylene, and one or more vinyl carbonyl monomers having the general structure (I): where R1, R2 and R3 are independently selected from a group consisting of hydrogen, halogen, hydroxyl, alkyl, substituted alkyl, alkoxy, substituted alkoxy, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, aralkyl, (heterocyclo)alkyl, (heteroaryl)alkyl, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, carboxamino(alkyl), (cyano)alkyl, alkoxyalkyl, hydroxyalkyl, heteroalkyl, substituted cycloalkyl, substituted cycloalkoxy, substituted aryl, and substituted heterocycles; and Y and Z are independently selected from a group consisting of O, (CR5aR5b), (CHR6a)—R6b, phenylene, CH—OR7, and NR8, wherein R5a, R5b, R6a, R6b, and R8 are independently selected from a group consisting of hydrogen, halogen, CH2, and alkyl, and wherein R7 is independently selected from a group consisting of hydrogen; halogen; hydroxyl; alkyl; linear ether; cyclic ether; Si(R9)3, wh

Abstract: Tetrahydrotricyclopentadienes are isomerized to a low pour point, high energy missile fuel. Aluminum trichloride is the catalyst and an inert chlorinated hydrocarbon solvent is present. The mole ratio of AlCl3 to the diene is in the range between from about 0.005 to about 1.0. The isomerization temperature is in the range from between about ?20° C. to about 25° C.

Abstract: A cycloolefin-based copolymer and a hydrogenation process are disclosed, wherein the cycloolefin-based copolymer is prepared by using: a monomer which can be easily and economically obtained by hydrogenating dicyclopentadiene that occupies much of C5 fractions from naphtha cracking; or a monomer which can be obtained by chemically bonding three molecules of cyclopentadiene via Diels-Alder reactions and then hydrogenating the cyclopentadiene. The copolymer can be used in various fields as an amorphous transparent resin.

Abstract: Embodiments of the present invention are directed generally to methods for producing high purity exo-alkenylnorbornenes from a mixture of conformational isomers thereof.

Abstract: The present invention is directed to novel methods for production of 5-epi-?-vetivone, 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethylspiro[4.5]deca-1,6-dien-8-one, which are useful for their fragrant qualities. Provided are methods for production of premnaspirodiene from a terpene substrate, methods for production of 5-epi-?-vetivone from premnaspirodiene as starting material, and methods for production of 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-1,6-dien-8-one from premnaspirodiene as starting material.

Abstract: This invention relates to a metathesis catalyst comprising a Group 8 metal complex represented by the formula: wherein: M is a Group 8 metal; each X is independently an anionic ligand; R1 and R2 are independently selected from the group consisting of hydrogen, a C1 to C30 hydrocarbyl, and a C1 to C30 substituted hydrocarbyl; R3 and R4 are independently selected from the group consisting of hydrogen, C1 to C12 hydrocarbyl groups, substituted C1 to C12 hydrocarbyl groups, and halides; and L is a neutral donor ligand. This invention also relates to processes for performing a metathesis reaction, in particular ring opening cross metathesis reactions and ring opening metathesis polymerization reactions, using the Group 8 metal complexes.

Abstract: The present invention is directed to novel methods for production of 5-epi-?-vetivone, 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethylspiro[4.5]deca-1,6-dien-8-one, which are useful for their fragrant qualities. Provided are methods for production of premnaspirodiene from a terpene substrate, methods for production of 5-epi-?-vetivone from premnaspirodiene as starting material, and methods for production of 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-1,6-dien-8-one from premnaspirodiene as starting material.

Abstract: This invention relates to a metathesis catalyst comprising a Group 8 metal complex represented by the formula: wherein: M is a Group 8 metal; each X is independently an anionic ligand; R1 and R2 are independently selected from the group consisting of hydrogen, a C1 to C30 hydrocarbyl, and a C1 to C30 substituted hydrocarbyl; R3 and R4 are independently selected from the group consisting of hydrogen, C1 to C12 hydrocarbyl groups, substituted C1 to C12 hydrocarbyl groups, and halides; and L is a neutral donor ligand. This invention also relates to processes for performing a metathesis reaction, in particular ring opening cross metathesis reactions and ring opening metathesis polymerization reactions, using the Group 8 metal complexes.

Abstract: The present invention relates to an improved process for producing tetra-hydro alkyl substituted indanes which are used in the synthesis of fragrance ingredients for perfumery applications.

Abstract: An effective method for producing high density fuel candidates from pinenes is provided. MMT-K10 is an efficient catalyst for the reaction, although significant amounts of p-cymene and camphene produced as byproducts limit the overall yield to about 80%. Nafion is also an excellent catalyst for pinene dimerization and was capable of producing dimers in up to 90% yield. Pinene dimers synthesized with these heterogenous catalysts have a density and net heat of combustion comparable to JP-10. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of the claims.

Abstract: A method for producing adamantane by performing an isomerization reaction in two stages using endo-tetrahydrodicyclopentadiene and/or exo-tetrahydrodicyclopentadiene as a starting material, wherein in a first-stage isomerization reaction from endo-tetrahydrodicyclopentadiene (tricyclo[5.2.1.02,6]decane) to exo-tetrahydrodicyclopentadiene (tricyclo[5.2.1.02,6]decane), an HF catalyst alone or two catalysts of an HF catalyst and a BF3 catalyst are used in the absence of a solvent; and in a second-stage isomerization reaction from exo-tetrahydrodicyclopentadiene (tricyclo[5.2.1.02,6]decane) to adamantane (tricyclo[3.3.1.13,7]decane), an HF catalyst and a BF3 catalyst are used in the absence of a solvent.

Abstract: A method of treating a hydrocarbon stream comprising cyclopentadiene (CPD) and one or more diolefins, the method comprising: providing a hydrocarbon stream comprising an initial CPD concentration, an initial target diolefin concentration, and an initial secondary diolefin concentration; subjecting the hydrocarbon stream to preseparation conditions effective to separate (a) a crude target diolefin feedstock having a decreased concentration of CPD and an increased target diolefin concentration, and (b) a CPD dimerization feedstock having a decreased target diolefin concentration and an increased CPD concentration that is 1.5 or more times the initial CPD concentration; subjecting the CPD dimerization feedstock to CPD dimerization conditions effective to produce a raw DCPD stream comprising 20 wt. % or more DCPD; and, separating a high purity DCPD product stream comprising 90 wt. % or more DCPD from the raw DCPD stream.

Abstract: The present invention relates to an improved process for producing tetra-hydro alkyl substituted indanes which are used in the synthesis of fragrance ingredients for perfumery applications.

Abstract: The present invention relates to an improved process for producing alkyl substituted indanes which are used in the synthesis of fragrance ingredients for perfumery applications.

Abstract: A method comprising reducing an acenequinone to form an acenepolyhydrodiol by exposing the acenequinone to a reducing environment comprising an alkoxyaluminate.

Abstract: In a process for producing cyclohexylbenzene, hydrogen and a liquid feed comprising benzene are introduced into a reaction zone and are contacted in the reaction zone under hydroalkylation conditions to produce cyclohexylbenzene. An effluent stream comprising cyclohexylbenzene and unreacted benzene is removed from the reaction zone and is divided into at least first and second portions, wherein the mass ratio of the effluent stream first portion to the effluent stream second portion is at least 2:1. The effluent stream first portion is then cooled and the cooled effluent stream first portion is recycled to the reaction zone.

Abstract: A method for synthesizing exo-tetrahydrodicyclopentadiene (exo-THDCPD) and adamantane is provided, including isomerization of an endo-tetrahydrodicyclopentadiene (endo-THDCPD) as a reaction feed with an acidic ionic liquid of aluminum trichloride in a pseudo-fixed bed ionic liquid reactor. Reactants float as a droplet from bottom to top of the pseudo-fixed bed reactor, and finally are discharged from a side tube. A mole fraction of aluminum trichloride in the acidic ionic liquid of aluminum trichloride is from 0.5 to 0.9, a feeding rate of the reaction feed is 0.1-10 g/min, and a temperature for the isomerization is between 25-120° C.

Abstract: A process for isomerization of tetrahydrodicyclopentadiene using a supported acidic ionic liquid as catalyst is provided. In the presence of the supported acidic ionic liquid, endo-tetrahydrodicyclopentadiene is isomerized to exo-tetrahydrodicyclo-pentadiene, wherein the supported acidic ionic liquid includes a porous support and an acidic ionic liquid, and the acidic ionic liquid includes an aluminum halide, and a quaternary ammonium halide or a quaternary phosphonium halide. The porous support is impregnated with the acidic ionic liquid. Furthermore, under different reaction conditions, the exo-tetrahydrodicyclopentadiene product can be isomerized to adamantane in the presence of such a supported acidic ionic liquid.

Abstract: A process is disclosed for converting distillate to gasoline-range hydrocarbons using a two-stage catalyst system including a first catalyst containing platinum, palladium, or platinum and palladium, and an acidic support, and a second catalyst containing iridium and an inorganic oxide support, and optionally nickel.

Abstract: The present invention is directed to novel methods for production of 5-epi-?-vetivone, 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-1,6-dien-8-one, which are useful for their fragrant qualities. In one embodiment the present invention describes a method for production of 5-epi-?-vetivone by the use of premnaspirodiene as starting material. In another embodiment the present invention describes a method for production of 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-1,6-dien-8-one by the use of premnaspirodiene as starting material. In yet another embodiment the present invention describes a novel method for production of premnaspirodiene from a terpene substrate. Use of the fragrant components or any composition containing the component can be advantageously employed in the perfumery industry.

Abstract: A method of performing a chemical reaction includes reacting a compound selected from the group consisting of an organohalide and an organo-pseudohalide, and a protected organoboronic acid represented by formula (I) in a reaction mixture: R1—B-T ??(I); where R1 represents an organic group, T represents a conformationally rigid protecting group, and B represents boron having sp3 hybridization. When unprotected, the corresponding organoboronic acid is unstable by the boronic acid neat stability test. The reaction mixture further includes a base having a pKB of at least 1 and a palladium catalyst. The method further includes forming a cross-coupled product in the reaction mixture.

Abstract: Carotenoids are extracted and/or enriched from a mixture containing such compounds. The extraction/enrichment process involves the use of liquefied or supercritical solvents to extract lipids and carotenoids from carotenoid-containing substrates. The extraction process can also be performed in two steps in which lipids and carotenoids are first removed from a carotenoid-containing substrate with a liquefied or supercritical solvent, and subsequently a liquefied or supercritical gas is used to separate the lipids from the carotenoids. The two step process can be reversed to first extract lipids with the liquefied or supercritical gas, and subsequently use the solvent to extract the carotenoids. The process is also applicable to yield an organic solvent-free product from a carotenoid-containing source that was first extracted using an organic solvent.

Abstract: The present invention relates to novel truxene and isotruxene derivatives, in particular spirotruxene and spiroisotruxene derivatives, and to the use thereof in organic electronic devices, in particular organic electroluminescent devices.

Abstract: Compounds of the formula (I): wherein each of R1-R12 is independently hydrogen or a linear C1-20 alkyl group each of A1 and A2 is a 1, 2 or 3 ring carbon atom wherein A1 is substituted by R9 and R10 and A2 is substituted by R11 and R12; and wherein at least one of R1-R12 is a linear alkyl group having from 1 to 20 carbon atoms are emollients for use in cosmetics, lubricants and pharmaceutical preparations.

Abstract: It is made possible to efficiently produce adamantane and analogues thereof, namely a hydrocarbon having an adamantane structure by a process which comprises isomerizing a tricyclic saturated hydrocarbon having ten or more carbon atoms in the presence of a solid-acid catalyst containing one or two or more metals selected from among the metals belonging to group VIII in the Periodic Table (group 8 to 12 in the new Periodic Table), wherein one or two or more monocyclic saturated hydrocarbons are added to the tricyclic saturated hydrocarbon having ten or more carbon atoms.

Abstract: The present invention relates to a novel biopolymer consisting of a three-dimensional cross-linked mixture of (a) a cross-linking agent, activated with an activating agent, dissolved in a aqueous solution, and (b) a recombinant protein, namely polyubiquitin. The novel biopolymer is based on the cross-linking of ubiquitin (monomeric and/or polymeric) with a cross-linking agent, preferably bifunctionalized polyethylene oxides or a polyethylene glycol of various molecular masses (MW 2000 to 35 000 kDa), dissolved in aqueous solution in adequate proportions. The novel biopolymer offers a wide range of formulations since the number of ubiquitin units and cross-linking agent can vary both in length and ratio. The novel hydrogel is also biodegradable by a specific protease and is resistant to a wide range of other proteases.

Abstract: A process for producing an unsaturated cyclic compound, comprising the steps of hydrochlorinating a terpene to produce a hydrochlorinated terpene, and subjecting the hydrochlorinate terpene to elimination of hydrogen chloride to form an unsaturated cyclic compound. The terpene is preferably &agr;-pinene, &bgr;-pinene, camphene or suitable turpentine fraction. The cyclic compounds can be used as monomers and by means of the invention it is thus possible to produce plastics from renewable raw material sources.

Abstract: It is made possible to efficiently produce adamantane and analogues thereof, namely a hydrocarbon having an adamantane structure by a process which comprises isomerizing a tricyclic saturated hydrocarbon having ten or more carbon atoms in the presence of a solid-acid catalyst containing one or two or more metals selected from among the metals belonging to group VIII in the Periodic Table (group 8 to 12 in the new Periodic Table), wherein one or two or more monocyclic saturated hydrocarbons are added to the tricyclic saturated hydrocarbon having ten or more carbon atoms.

Abstract: The present invention is drawn to a tetracyclododecene composition having a regulated cyclopentadiene trimer content, whereby addition polymerization with the aid of a Ziegler catalyst can be carried out while preventing gelation caused by a cross-linking reaction. A tetracyclododecene composition regulated with respect to the content of a specific ingredient having a molecular weight of 188 is disclosed, whereby polymers having high glass transition temperatures can be obtained through various polymerizations. Further, the present invention is drawn to a method for producing tetracyclododecene in the presence of an aliphatic solvent having a boiling point close to that of norbornene, which solvent is effective in inhibiting the recovered norbornene from solidifying.

Abstract: This process for the manufacture of norbornene from dicyclopentadiene (DCPD) and ethylene is characterized in that the DCPD is subjected to partial monomerization to CPD by preheating: at a temperature of 140° C. to 240° C.; and under a pressure of 20 to 300 bar abs., before reacting it with the ethylene; with an ethylene/DCPD molar ratio of 1 to 20; at a temperature of 200° C. to 320° C.; under a pressure of 20 to 300 bar abs.; and with a residence time of 1 to 10 minutes, under stable reaction conditions between the DCPD, the CPD and the ethylene.

Abstract: A process for simultaneously producing a purified dicyclopentadiene and 5-ethylidene-2-norbornene from a crude dicyclopentadiene and 1,3-butadiene, which comprises the following steps of:

Abstract: The present invention relates to a process for the preparation of tetracyclododecenes, which can be a raw material of cycloolefin (co)polymers possessing excellent characters concerning their optical property, high transparency, heat resistance, and oil absorbency, from an inexpensive raw material of crude DCPD in a stable, continuous, and longstanding process. In the continuous preparation of tetracyclododecenes described in the present invention, it is possible to produce the targeted product in high efficiencies in the effective utilization of the raw materials exemplified by the separation and recovery of 2-norbornenes after the reaction. It is also possible to maintain a stable, continuous, and longstanding operation based on the suppression of ill effects deriving from the accumulation of byproducts such as 2-methyl-2-norbornenes, which easily creep into the circulating 2-norbornenes, by removing at least a part of said products from the reaction system.

Abstract: Disclosed are polymers containing as polymerized units one or more cyclic olefin monomers having fused cyclic electron withdrawing groups, methods of preparing such polymers, photoresist compositions including such polymers as resin binders and methods of forming relief images using such photoresist compositions.

Abstract: The present invention relates to a process for the preparation of highly purified tetracyclododecenes, which can be a raw material of cycloolefin (co)polymers possessing excellent characters concerning their optical property, high transparency, heat resistance, and oil absorbency, from an inexpensive raw material of crude DCPD in a stable, continuous, and longstanding process. In the continuous preparation of tetracyclododecenes described in the present invention, it is possible to employ crude dicyclopentadiene, that is, dicyclopentadiene having low purity, as a raw material. It is also possible to produce highly purified tetracyclododecenes by maintaining the ratios of one, two, or three compounds selected from the group comprising isoprene, piperylene, and 1-methyl-2-norbornenes shown by the general formula (4) against the sum of dicyclopentadiene and cyclopentadiene within the specified ranges, wherein all these substances are contained in the raw material that are fed into a reactor.

Abstract: Substituted or unsubstituted cyclopentadienyl are prepared by reducing 4-ketocyclopentene to an alcohol, replacing the hydroxyl functionality with a leaving group and deprotonating the resulting product under base induced elimination conditions.

Abstract: The present invention relates to a process for preparing bisindenylalkanes of formula I: wherein R1, R2, R3, and R4 independently represent H or a C1-C6 hydrocarbon group or R1 and R2 or R1 and R3 or R3 and R4 together with the carbon atoms to which they are attached form a saturated or unsaturated 5- or 6-membered ring, said ring being optionally substituted with a C1-C4 hydrocarbon group, and R5 represents a C1-C6 hydrocarbon group, comprising reacting, at a temperature which does not exceed about 5° C., a metallated indene of formula II with a disubstituted hydrocarbon of formula III: wherein R1, R2, R3, R4, and R5 have the same meaning as defined above, M represents a metal ion, and X independently represents a suitable leaving group, in a suitable reaction medium wherein the molar ratio of II to III is 2.05 or higher. The process is particularly suitable for preparing bisindenylethane, i.e., R1-R4 represent H and R5 represents an ethylene group.

Abstract: Tetrahydroindene is dehydrogenated in a vapor phase in the presence of a metallic catalyst, e.g., a nickel-molybdenum catalyst, to produce indene, which is industrially useful in high yield while inhibiting the catalyst from suffering a decrease in activity. In particular, a higher yield can be attained by a method in which tetrahydroindene is dehydrogenated to first convert it into indane, which is further dehydrogenated to obtain indene.

Abstract: It is disclosed a new class of bridged metallocene compounds of formula (I): wherein R1 and R2 can be hydrogen, alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl radicals; R3 and R4 form a condensed, 5- to 8-membered, aliphatic, aromatic or heterocyclic ring; M is a transition metal of groups 3, 4, 5, lanthanide or actinide; X is hydrogen, halogen, —R, —OR, —OSO2CF3, —OCOR, —SR, —NR2 or PR2, wherein R is an hydrocarbon substituent; and p is 0-3. Furthermore, a catalyst system for olefin polymerization based on the above bridged metallocene compounds and the ligands for their preparation are disclosed.

Abstract: The invention relates to bicyclic aldehydes and ketones of formula (I): wherein n is 1 or 2; R1 and R4 are independently H or CH3; and R2 and R3 are independently H, CH3 or CH2CH3 The invention also provides odorant compositions containing at least one compound of formula (I). A process for the manufacture of R1-methyl substituted compounds of formula (I) having a bridgehead-positioned double bond, as well as intermediates thereof is also provided.

Abstract: A process for preparing bis-cyclopentadienyl compounds bridged by a methylene group is reported, said process comprising reacting formaldehyde with a cyclopentadienyl compound in the presence of a base and of a solvent having a dielectric constant (.epsilon.), measured at 25.degree. C., higher than 7. The bridged compounds, obtainable in high yields with this simple single-step process, can be used to prepare ansa-metallocenes, active as catalyst components in the polymerization of olefins.

Abstract: It has been discovered that the degree of hormonal activity of candidate ligands correlates better with degree of fit into DNA than with the strength of receptor binding, and that the receptors in the steroid/thyroid hormone/vitamin A and D family alter the physiochemical properties of DNA and in concert with other transcription factors facilitate insertion of the ligand into DNA. As a result, the magnitude of the response is a function of the structure of the ligand as it related to insertion and fit into the DNA and the specificity of the response is a function of the stereochemistry of the receptor through binding to both the ligand and to the DNA. Based on these discoveries, a method is described herein for identifying drugs having increased activity as compared with the natural ligand for receptors such as the estrogenic receptors.

Abstract: Utilization of thermodynamic ratios to produce pure rac and pure meso isomers or a mixture thereof.

Abstract: The specification discloses terpene-based solvent compositions which comprise diterpenes as a major component and a minor amount of monoterpenes. The mixtures exhibit solvent properties similar to monoterpenes but have flash points high enough to be classified as combustible rather than flammable materials.

Abstract: A description is given of the preparation of hydroxybiphenyl by dehydrogenation of completely or partially hydrogenated precursors using a supported Rh catalyst which additionally contains chromium, manganese and alkali metal and can contain a sulphur compound. The Rh catalyst which can be used according to the invention is prepared from halide-free starting materials. The Rh catalyst is distinguished by a low dependence of the initial selectivity, with the selectivity in the run-in state and the running-in time on the conditions of the reductive pretreatment and requires only short running-in times to reach the optimum state.

Abstract: Terpene dimer compositions are provided which dry into a hard, tack free film upon exposure to air. The compositions include a terpene dimer having the molecular formula C.sub.20 H.sub.32 and contain at least one double bond. The terpene dimer is derived from a naturally occurring monoterpene, or mixtures thereof, having the molecular formula C.sub.10 H.sub.16. In an another embodiment the compositions, in addition to the terpene dimer, include isomers of the monoterpenes. The compositions are substantially free of higher terpene oligomers having molecular formulas greater than C.sub.20 H.sub.32. Processes for making the terpene dimer compositions are also provided. Advantageous utilization of these compositions is as a diluent, solvent or component in coating, adhesive, alkyd or ink formulations, as an environmentally safe non-toxic material.

Abstract: A method for producing cyclopentadienes which comprises the step of cyclodehydration of an unsaturated carbonyl compound having a specific chemical structure in a vapor phase in the presence of a specific solid acid catalyst. The cyclopentadienes of the invention can be produced in a high yield from inexpensive starting materials through a simplified reaction process and are useful as intermediate compounds for organic synthesis.

Abstract: The present invention relates to a process for preparing a carbon-bridged biscyclopentadiene compound by reacting one or two cyclopentadiene compounds LH with a carbonyl compound in the presence of at least one base and at least one phase transfer catalyst.

Abstract: Cyclopentadineyl compounds of the formula II ##STR1## and formula III ##STR2## their preparation and their use as intermediates in the preparation of metallocene complexes of the formula I.

Abstract: A process for the preparation of the compound of the formula ##STR1## comprising dimerizing norbornadiene in the presence of N-methylpiperidine and a combined catalyst of (1,5-cyclooctadiene)(1,3,5-cyclooctatriene)-ruthenium and N,N-dimethylacrylamide.